Clutch.



PATENTED NOV. 5, 1907.

W. R. WARREN.

CLUTCH.

APPLICATION FILED 11113.7, 190a.

WITNESSES:

Mm-MM INVENTOR ATTORN EY WILLIAM R. WARREN, OF NEW YORK, N. Y. I

CLUTCH.

To all whom it may concern: I Be it known that I, WILLIAM R. WARREN, acitizen of the United States, residing at New York city, in the countyand State of New York, have invented new and useful Improvements inClutches, of which the following is a specification.

By means of this invention the jerk or suddenness caused by abruptclutching can be avoided. A gradual alongw m Fig. 2.

In this drawing are shown two shafts a and b as also a clutch. Onemember of the clutch is indicated at c.

The other member of the clutch comprises two parts d and e. These partsacting successively or non simultaneously the clutch is not at oncebrought to full engagement' or clutched for its entire extent. Thesection a is shown of flatter or shallower shape or with its face at adifferent angle than the face or engaging part of the section d. I l

The clutch members moving toward one another the part e will firstengage member 0. This engagement allows slipping or lost motion to acertain degree with a gradual communication of motion from shaft toshaft.

As the clutch members move toward one another or 11e member moves to theother the clutch part of is roughtinto engagement and the clutch is thenin full engagement or grip with both parts a and din action.

The -clutchmember c is shown with seats or engaging parts correspondingto the parts e d or one of smaller diameter and difiefent angle orinclination as compared withthe. other. The parts of smaller diameterare made to'eng'age first and then those of larger diameter/ The clutch.member 'd or its hub part is shown with an annular groove f for theengagement of a lever.(not

Specification of Letters Patent.

Application filed Mmh 7.190s. Serial No. 304.724.-

Patented Nov. 5, 1907.

shown) as customary in clutches. move the clutch d e to engagement. 4

To the clutch section e are secured studs h which Springs g tend to passloosely through holes in the section 11 but nuts or the like on thestuds or bolts h form stops to prevent the section d slipping off thestuds. Springs 'i tend to move the sections e and d apart.

To the section (1 are also fixed studs l: which fit loosely into holesin the section e. These studs h k compel the sections d e to rotatetogether but allow such sections to move toward and from one another.

As the clutch comes to engagementthe part 2 acts firstand can slip tosome extent. The parts e and (I when both in grip with members 0 cause afirm clutch or locking. 7 v

The springs g can be braced against a collar or disk secured to shaft b.A feather connectionbetween the clutch member part d and shaft b arealso shown.

The shaft acould be a driving shaft but this is not essential. The part0 could also be afly wheel but not necessarily so.

. p g. The clutch is shown with the member part 2 flatter and shalloweror of different configuration than the part (I. In other words thepreliminary clutching is weaker than the other.

What I claim as my invention, and desire to secure by Letters Patent,is: I v A clutch comprising the combination with a driving-and a drivenelement, of a clutch member secured to one of said elements and providedwith u'palr of.inciined seats having their walls at different degrees offlare or inclination, a clutch member slidably mounted upon the other ofsaid elements and comprising two sections with diflerently inclinedfaces toirespectively correspond to the inclines of the seats, looseconnecting studs for the sections to compel the same to rotate togetherwhile allowing the same to move toward and from one another, springs formoving the sections apart, and means for moving the sections to and fromthe seats, the section of greater flare 0r flatter shape being placed inadvance of the other section s3 that such section of flatter shapeengages its seat before the other section comes into engagement. I

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

WILLIAM R. WARREN. Witnesses ED\\'AliD \VinsNnn, GFDRGE HULSBERG.

